Is there a way to implement the following asynchronously with MappedAsyncPagingIterable interface with CompletionStage<MappedAsyncPagingIterable> mappedAsyncPage?
I want to implement a linkedin feed feature where first request fetches first 5 rows and the following requests will fetch the next 3 rows
@Override
public List<Tuple2<String,CustomerRequest>> getCustomerRequestData(final String productId, PreparedStatement ps, final String receiptPeriod, String pagingState)
{
final int PAGE_SIZE = 10;
session = cassandraSessionFactory.getSession();
final List<CustomerRequest> customerRequestdata = new ArrayList<CustomerRequest>();
try
{
final BoundStatement boundStatement = ps.bind(productId, receiptPeriod, PAGE_SIZE);
boundStatement.setPagingState(PagingState.fromString(pagingState));
final ResultSet resultSet = session.execute(boundStatement);
final Iterator<Row> iter = resultSet.iterator();
final PagingState nextPage = resultSet.getExecutionInfo().getPagingState();
int remaining = resultSet.getAvailableWithoutFetching();
for (final Row rowdt : resultSet)
{
customerRequestdata.add(constructCustomerReq(rowdt));
if (--remaining == 0)
{
break;
}
}
}
catch (final Exception e)
{
e.printStackTrace();
}
return new Tuple2<>(nextPage.toString(), customerRe);